Question

In file app.js i have:

  , mongoose = require('mongoose')
  , db = mongoose.connect('mongodb://localhost/expressdb');

  app.get('/', routes.index);

and i have file routes/index.js, If I want to transfer db variable to routes.index What should I do?

Answer 1

I’ve setup an example on how you can achieve that, by passing the db as a parameter to the route module, and that module returns a function (in which db is visible):

routes.index

module.exports = function (db) {
  return function(req, res, next) {
    // you can access db here
  }
}

app.js

...
routes = {};
routes.index = require('./routes')(db);
...